PSY (real name: Park Jae-Sang) is a South Korean singer, songwriter, and rapper. 'Gangnam Style', his most successful single to date, is the most viewed K-Pop video on YouTube.

This also marks the first time a South Korean artist has topped the iTunes charts.

Dan Barrett, Guinness World Records Community Manager, comments, 'Having been the "Have you seen this?!" video of the last two months across the web, it's great to be able to award a record for this tremendously popular video. In years past it was unthinkable that something would be viewed a hundred million times, and now "Gangnam Style" has achieved more than twice this figure in just 3 months on YouTube.'